Novel design of a wide-angle low-loss Y-junction waveguide

2000 ◽  
Author(s):  
Wen-Ching Chang ◽  
Han-Bin Lin ◽  
Kuo C. Wei ◽  
Li-Ying Chang
Keyword(s):  
Wide Angle ◽  
Low Loss ◽  
Novel Design

A wide-angle magnetic spectrograph of a novel design

2006 ◽  
Vol 249 (1-2) ◽  
pp. 939-942 ◽  
Author(s):  
Roch Andrzejewski ◽  
Julio Lucas ◽  
Angel Guirao ◽  
Nuria Gordillo ◽  
Dirk Boerma
Keyword(s):  
Wide Angle ◽  
Novel Design

Low-loss, wide-angle Y splitter at ∼16-µm wavelengths built with a two-dimensional photonic crystal

2002 ◽  
Vol 27 (16) ◽  
pp. 1400 ◽  
Author(s):  
S. Y. Lin ◽  
E. Chow ◽  
J. Bur ◽  
S. G. Johnson ◽  
J. D. Joannopoulos
Keyword(s):  
Photonic Crystal ◽  
Wide Angle ◽  
Two Dimensional ◽  
Low Loss ◽  
Dimensional Photonic Crystal ◽  
Two Dimensional Photonic Crystal

Design, Fabrication and Test of Modified Septum Antennas for Satellite Telecommunication

Frequenz ◽  
2018 ◽  
Vol 72 (7-8) ◽  
pp. 301-313 ◽  
Author(s):  
Mohammad Fazaelifar ◽  
Shahrokh Jam ◽  
Raheleh Basiri ◽  
H. Reza Azadi
Keyword(s):  
Axial Ratio ◽  
Beam Width ◽  
Center Frequency ◽  
Low Loss ◽  
Ground Station ◽  
Large Bandwidth ◽  
Low Weight ◽  
Measurement Results ◽  
Novel Design ◽  
Better Than

Abstract In this paper at first, the ordinary septum polarizer has been designed and used for parabolic reflector feed in Ground station antenna. Next, a novel design of modified septum polarizer with wider beam-width is proposed for satellite antenna. Compactness, low weight, large bandwidth, high TX/RX isolation, low axial ratio as well as low loss are the advantages of the septum polarizer. The designed antenna has high purity circular polarization ( $\left| {AR} \right| \le 1.6dB$ ) and low return loss. The frequency bandwidth of the antenna is about 27 % in the center frequency 11 GHz and the TX/RX isolation is better than 32 dB. Finally the septum polarizer, modified septum polarizer and reflector are fabricated and tested and there were good agreement between simulation and measurement results.

A novel design of a low-voltage low-loss T-match RF-MEMS capacitive switch

2017 ◽  
Vol 24 (1) ◽  
pp. 561-574 ◽  
Author(s):  
Li-Ya Ma ◽  
Anis Nurashikin Nordin ◽  
Norhayati Soin
Keyword(s):  
Rf Mems ◽  
Low Voltage ◽  
Low Loss ◽  
Capacitive Switch ◽  
Novel Design

Low-loss wide-angle Y-branch optical waveguides

2005 ◽  
Vol 88 (2) ◽  
pp. 11-18
Author(s):  
Tetsuro Yabu ◽  
Masahiro Geshiro ◽  
Masaharu Ohashi
Keyword(s):  
Optical Waveguides ◽  
Wide Angle ◽  
Low Loss

Microprism for Wide-Angle Low-Loss Y-Junction Waveguide

1998 ◽  
Vol 17 (3) ◽  
pp. 213-219 ◽  
Author(s):  
CHING-TING LEE MOUNT-LEARN WU
Keyword(s):  
Wide Angle ◽  
Low Loss

Low-loss electron image in the sem

1983 ◽  
Vol 41 ◽  
pp. 2-5
Author(s):  
Oliver C. Wells
Keyword(s):  
Electron Microscope ◽  
Solid Angle ◽  
Primary Energy ◽  
Wide Angle ◽  
Low Loss ◽  
Backscattered Electrons ◽  
Electron Image ◽  
Takeoff Angle ◽  
Scintillator Detector ◽  
Scanning Electron

The idea of filtering the backscattered electrons (BSE) in the scanning electron microscope (SEM) in order to improve the spatial resolution was suggested by McMullan (1953a) as follows: “...the beam from the specimen could be restricted to the electrons which have lost only small amounts of energy and which have therefore travelled only short distances through the specimen.” BSE which have lost less than about 1% of the primary energy can be called “low-loss electrons” or LLE (Wells 1971). As compared with LLE, the reflected electron peak contains electrons that have lost essentially no energy (Seiler 1983).Data on BSE and LLE from solid targets was given by Kanter (1957) and by Wolf, Coane and Everhart (1970). The wide-angle scintillator detector for BSE (in which the scintillator subtends a large solid angle at the specimen) was investigated by Smith (1956) and by Everhart (1958). The importance of the takeoff angle with this detector was shown experimentally by Wells (1957 and 1970).

Low-Loss Wide-Angle Polymeric Single-Mode Y-Junctions

1999 ◽  
Vol 28 (1) ◽  
pp. 21-31
Author(s):  
A. K. Das ◽  
M. K. Pandit ◽  
S. Ghosh ◽  
B. S. Chaudhari
Keyword(s):  
Single Mode ◽  
Wide Angle ◽  
Low Loss
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